Five years from 2008, I'm sure the U.S.A. will look pretty much as it does today and as it did fifteen years ago.
However, here's a guy who thinks that in about ten or fifteen years from now, you really will see a very different U.S.A. :
INTERVIEW TRANSCRIPT re: Chalmers Johnson: “Nemesis: The Last Days of the American Republic”<<That is, the only way—you’ve got to reconstitute the constitutional system in America, or it is over. . . .
once you go in the direction of empire, you ultimately lead to overstretch, bankruptcy, coalitions of nations hostile to your imperialism. We’re well on that route.>>
http://www.democracynow.org/2007/2/27/chalmers_johnson_nemesis_the_last_daysRead the transcript of the whole interview. It's two years old, but this guy really has a handle on change.